Last Updated: September 2026. At Pro-OmniTools, your privacy is our core architectural principle. All calculations, file transformations, and personal health computations occur exclusively inside your browser on your local device.
Unlike traditional web converters that upload your sensitive images, PDF documents, spreadsheets, and files to remote cloud servers, Pro-OmniTools executes all computations locally in your browser sandbox using HTML5 Canvas, WebAssembly, and modern JavaScript Web APIs.
✓ Zero File Uploads: Your documents, videos, photos, and files never leave your computer or smartphone, are never transmitted across the network, and are never stored on any server database.
Our health and lifestyle calculators (including menstrual cycle predictors, ovulation trackers, pregnancy due dates, and body composition estimators) require you to input personal biological dates or measurements.
We do not collect, store, profile, or transmit your health information. All calculations run strictly in transient browser memory. Once you navigate away or close your browser tab, all calculated values and input dates are instantly and permanently discarded.
Opening a tool establishes a standard secure HTTPS connection with our hosting infrastructure (Vercel). The edge network receives standard connection headers such as your IP address for basic routing and DDoS security. Tool processing still occurs on your device.
Your selected color theme (Dark/Light mode) and tool bookmarks are stored purely in your browser's localStorage on your own device. We do not maintain server-side user profiles or session tracking databases.
Pro-OmniTools is supported by advertising to keep all calculators and utility tools 100% free, private, and unlimited for everyone worldwide.
We do not require user accounts, email registration, credit cards, or logins. Aggregated diagnostic information may include:
If you have any questions or feedback regarding our privacy practices or data handling, please contact our team via our Contact Page or email our privacy desk directly at privacy@pro-omnitools.com (general inquiries: contact@pro-omnitools.com).